40013332220 has 24 divisors (see below), whose sum is σ = 85040386704. Its totient is φ = 15812496896.

The previous prime is 40013332211. The next prime is 40013332241. The reversal of 40013332220 is 2223331004.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40013332192 and 40013332201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12050549 + ... + 12053868.

It is an arithmetic number, because the mean of its divisors is an integer number (3543349446).

Almost surely, 2^40013332220 is an apocalyptic number.

It is an amenable number.

40013332220 is an abundant number, since it is smaller than the sum of its proper divisors (45027054484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40013332220 is a wasteful number, since it uses less digits than its factorization.

40013332220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24104509 (or 24104507 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 40013332220 its reverse (2223331004), we get a palindrome (42236663224).

The spelling of 40013332220 in words is "forty billion, thirteen million, three hundred thirty-two thousand, two hundred twenty".